Earnings Per Share - Diluted Loss Per Share Calculation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Earnings Per Share [Abstract]
Net income - basic and diluted	$ 17,042	$ 28,637	$ 55,175	$ 103,817
Weighted average outstanding shares of common stock basic (shares)	100,572,016	104,169,833	100,615,006	105,309,185
Restricted stock units and options to purchase common stock (shares)	809,960	1,767,596	804,764	2,167,864
Weighted average outstanding shares of common stock diluted (shares)	101,381,976	105,937,429	101,419,770	107,477,049
Net income per share - diluted (usd per share)	$ 0.17	$ 0.27	$ 0.54	$ 0.97